Raw material for producing polypropylene line - the physical properties of polypropylene

1. Form: polypropylene flat vertical surface smooth, circular cross-section.

2. Density: The biggest advantage of polypropylene is light texture, its density is only 0.91g / cm3 is a common chemical fiber density lightest varieties, so the same weight polypropylene than other fibers higher coverage obtained.

3. Strength and elongation properties: high strength polypropylene, the elongation large, high initial modulus, good elasticity. So good abrasion resistance of polypropylene. In addition, polypropylene wet strength substantially equal to dry strength, so it is the production of fishing nets, an ideal material for the cable.

4. Hygroscopic and dyeing: light warm and good; almost does not absorb moisture, but the heart strong absorption capacity, wicking effect is obvious; polypropylene moisture absorption is very small, almost no moisture absorption, moisture regain under normal atmospheric conditions close to zero . But it has wicking, capillary transfer through the fabric of steam, but itself has no absorption. Polypropylene dyeability poor chromatography incomplete, but can be used to make liquid coloring method insufficient.

5. Acid and alkali resistance: Polypropylene has good chemical resistance, in addition to concentrated nitric acid, concentrated caustic soda, the polypropylene acid and alkali resistance performance is good, so is suitable for use as filter materials and packaging materials.

6. Light resistance: polypropylene lightfastness is poor, poor thermal stability, easy to aging, iron intolerance. But it can be added during spinning old age Chinese agent to improve its anti-aging properties. In addition, polypropylene electrical insulation is good, but easy to produce static electricity during processing.

7. High intensity: polypropylene strength behind nylon, but the price is only 1/3 of nylon; made of fabric dimensional stability, wear elastic good, good chemical stability. But poor thermal stability, intolerance sun, easy to aging embrittlement damage, for which often join in the anti-aging agent in polypropylene.

Woven polypropylene line is mainly used in sewing, soccer, volleyball, baseball, yo-yo with lines, cable lines, nets with the line, shoe materials line, luggage line, kite lines, twisted sideline, sideline waste, container bags special thread, sewing thread, wire bundles of bank notes, curtains lines, building lines, construction lines, ribbon cable, wire toys, umbrella rope line, optical cable tie around the wire, fishing nets, lines and other industries.

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